Carbonic acid will not dissociate completely in H 2 O.Therefore, in a 0.2 M solution, there will be fewer ions than in a 0.2 M solution of HBr (which
dissociates completely). Electrical conductivity depends on the number of ions in solution, so
HBr would be the better electrical conductor.112 . T, F
In the equation , when you increase pressure, the system will try to relieve the
stress and skew the equilibrium to the side of the equation with fewer moles of gas formed,
and more C will be produced.
113 . F, T
Water does not make a good buffer. A good buffer is defined as a pair of solutes (salts) that can
keep the pH of a solution almost constant if either acid or base is added. Water is unable to do
this.
114 . T, T
The kinetic molecular theory of gases has five assumptions to it:
Gases are made up of particles whose volumes are negligible compared with the
container volume.1.
2. Gas atoms or molecules exhibit no intermolecular attractions or repulsions.
Gas particles are in continuous, random motion, undergoing collisions with other
particles and the container walls.3.
Collisions between any two gas particles are elastic, meaning that there is no overall gain
or loss of energy.4.
The average kinetic energy of gas particles is proportional to the absolute temperature
of the gas, and is the same for all gases at a given temperature. That collisions between
the particles and the container walls are elastic is not necessarily a consequence of the
other assumptions.5.
115 . F, T
Al 2 (Cr 2 O 7 ) 3